Square trunking: the most universal.

Arc shaped trunking: Smooth edges, more aesthetically pleasing, and collision resistant.

Skirting line groove: integrated into the skirting line, highly invisible.

Multi layer cable tray: There are partitions inside, which can completely separate strong and weak electrical cables to avoid interference.

Key components (forming a complete system):

Types of connectors: straight through (inner/outer corner) connectors, three-way connectors, four-way connectors, female/male corner connectors.

Elbows: horizontal elbows, vertical elbows (up and down bends), groove elbows.

Terminal and connection types: terminal head, incoming box (with knock off hole), cover plate joint.

Fixed and auxiliary types: slot type card holders, screws, expansion tubes, glue (used for bonding PVC and walls).